class Util {
  constructor() {}
  _isPrimitive(value) {
    return (
      typeof value === "string" ||
      typeof value === "number" ||
      typeof value === "symbol" ||
      typeof value === "boolean"
    );
  }
  _isDef(v) {
    return v !== undefined && v != null;
  }
}
export const util = new Util();
